National security experts agree Boston bombers could be linked to Al Qaeda

More information is emerging about the two brothers believed to have set the bombs off at the Boston Marathon. They're young men from Chechnya, with good backgrounds in school bringing even more questions are coming to mind about why they did this.

Two suspects in the Boston Marathon bombing have been identified to The Associated Press as coming from a Russian region near Chechnya. In the past, insurgents from Chechnya and neighboring restive provinces in the Caucasus have been involved in terror attacks in Moscow and other places in Russia. In this Sept. 9, 1999 file photo fire and smoke rise from a destroyed apartment building in Moscow, an attack blamed on Chechen militants, as Russian Emergency Situations Ministry officers and firefighters try to save people. (AP Photo/Tatiana Makeyeva, file)Photo by (AP Photo/Tatiana Makeyeva, file)